How to Show Excise Invoice Number in Customer Report FBL5n

Dear Experts,

we have requirement to show excise invoice number ( field J1_IEXCHDR -EXNUM ) . we can also map this number with any reference field ( like ref key 1/ 2 / 3 ) .

what is the procedure to do this?

Can you please help me on this.

thanks in advance.

Regards

Nitin Gupta